Motherboard Layout
28
27
26
25
24
23
22
1
ATX 12V Power Connector (ATX12V1)
2
ATX Power Connector (ATXPWR1)
3
CPU Heatsink Retention Module
4
CPU Socket
5
CPU Fan Connector (CPU_FAN1)
6
2 x 240-pin DDR3 DIMM Slots
(Dual Channel: DDR3_A1, DDR3_B1)
7
Chassis Fan Connector (CHA_FAN1)
8
Southbridge Controller
9
Chassis Speaker Header (SPEAKER1)
10
System Panel Header (PANEL1)
11
SATA2 Connector (SATA_1)
12
SATA2 Connector (SATA_2)
13
SATA2 Connector (SATA_4)
14
SATA2 Connector (SATA_3)
2
21
20
19
18
ASRock FM2A55M-DGS R2.0 Motherboard
2
17
16
15
15
SATA2 Connector (SATA_6)
16
SATA2 Connector (SATA_5)
17
SPI Flash Memory (64Mb)
18
USB 2.0 Header (USB4_5)
19
USB 2.0 Header (USB8_9)
20
Print Port Header (LPT1)
21
COM Port Header (COM1)
22
Front Panel Audio Header (HD_AUDIO1)
23
PCI Slot (PCI1)
24
PCI Express 2.0 x1 Slot (PCIE2)
25
Clear CMOS Jumper (CLRCMOS1)
26
PCI Express 2.0 x16 Slot (PCIE1)
27
Chassis Intrusion Header (CI1)
28
Power Fan Connector (PWR_FAN1)
7
8
9
10
11
12
13
14